%I A026650
%S A026650 1,6,21,108,370,1908,6587,34248,119142,623700,2182818,11487528,
%T A026650 40391988,213451560,753295635,3993910416,14136717574,75152083716,
%U A026650 266650874678,1420670333640,5050926317724,26960309526744,96015725922014
%N A026650 a(n) = T(2n,n-1), T given by A026648.
%Y A026650 Sequence in context: A012418 A083558 A060843 this_sequence A009253 A012840 
               A013320
%Y A026650 Adjacent sequences: A026647 A026648 A026649 this_sequence A026651 A026652 
               A026653
%K A026650 nonn
%O A026650 1,2
%A A026650 Clark Kimberling (ck6(AT)evansville.edu)